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West Virginia researcher describes how Volkswagen got caught

The cheating scandal engulfing the world's largest automaker started with a road trip. In the spring of 2014, researchers from West Virginia were evaluating the tailpipe emissions of diesel cars made for the American market by European manufacturers, something never before studied in the academic realm. Excited by the prospect of breaking new ground, the team of two professors and two students wanted to gather as much data as possible. "And being academics, we went a little overboard," said Arvind Thiruvengadam, one of the students. "Being academics, we went a little overboard." Overboard included driving the cars for more miles than they needed to test and verify results. Drivers put about 1,500 miles on each of the first two cars in the study, a Volkswagen Jetta and BMW X5, along California roadways. For their final car, a Volkswagen Passat, they wanted even more mileage. So they took the car on a road trip from Los Angeles to Seattle and back again, collecting data from more than 2,000 miles of testing. The road trip was Volkswagen's undoing. When the West Virginia team returned to Los Angeles, they were befuddled by the test results. In theory, the Passat should have spewed the lowest levels of pollutants among the three cars. Equipped with the more modern selective catalytic reduction technology, the team expected to find minimal levels of nitrogen oxide. But the car, which had been certified at a California Air Resources Board facility prior to the start of the road trip, had elevated levels of NOx that were 20 times the baseline levels established beforehand. The researchers, comprised of professors Gregory Thompson and Dan Carder and students Marc Besch and Thiruvengadam, knew their on-board equipment functioned properly because, early in their research, they had double-checked its accuracy after recording sky-high NOx readings from the Jetta that showed 30 times the level of its baseline testing at the CARB facility. It was particularly noteworthy because the Jetta contained the first-generation Lean NOx Trap technology, not the more efficient SCR, yet both produced large discrepancies. The BMW, on the other hand, performed as expected. Today, Thiruvengadam is careful to say the research team never suspected Volkswagen of cheating on emissions testing, nor did the researchers report such a finding. They merely reported their findings to CARB officials who then further investigated.

VW Scirocco is the car nerd's classic car

Petrolicious undoubtedly makes some fantastic videos, but it often focuses on expensive, rare vehicles that many people might not be able to afford for their garage. This week the spotlight shifts to a modern coupe that's fairly accessible: the Volkswagen Scirocco. Owner Jason Cammisa is a senior editor at Road & Track, and his job puts him behind the wheel of some of the world's fastest supercars. Despite that, he has kept driving this 16-valve Scirocco that he has owned since college. The Scirocco is an easy car to love, though. Its simple, angular lines still look beautiful on the road today. While the four-cylinder engine doesn't make huge power, the coupe is nimble and ideal for a drive over twisty roads. Cammisa also makes an interesting point about owning affordable classics like this. Without a wealthy owner base like those that support vintage Corvettes or Porsches, there's little desire in the aftermarket to produce spare parts for his Scirocco. He worries about keeping the VW on the road decades into the future. For now, enjoy this '80s coupe thanks to this great clip from Petrolicious.

Porsche 911 and Nissan 350Z get smoked by unlikely hero

So a Nissan 350Z Procharger and a current Porsche 911 GT3 drive onto the Autobahn together - stop me if you've heard this one before - and they decide to race. We're not sure how much power the Z is packing, but the stock model topped out at 306 horsepower on the last year of its run in 2009. And if that's a stock GT3 then it will be rocking something like 475 horsepower. So the Z and the GT3 give it a racing go, and just as one of them starts to pull away they're both overtaken by one of the most unlikely dark horses you could imagine. It's a really short video and we won't spoil the surprise, so check it out above. News Source: Woreth V12 via YouTube Nissan Porsche Volkswagen Coupe Hatchback Luxury Racing Vehicles Performance Videos porsche 911 gt3 autobahn